<div class="refentry" lang="en" xml:lang="en"><a id="glMatrixMode"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glMatrixMode — specify which matrix is the current matrix</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table><tr><td><code class="funcdef">void <b class="fsfunc">glMatrixMode</b>(</code></td><td>GLenum  </td><td><var class="pdparam">mode</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>mode</code></em></span></dt><dd><p>
                    Specifies which matrix stack is the target
                    for subsequent matrix operations.
                    Three values are accepted:
                    <code class="constant">GL_MODELVIEW</code>,
                    <code class="constant">GL_PROJECTION</code>, and
                    <code class="constant">GL_TEXTURE</code>.
                    The initial value is <code class="constant">GL_MODELVIEW</code>.
                    Additionally, if the <code class="code">ARB_imaging</code> extension is supported,
                    <code class="constant">GL_COLOR</code> is also accepted.
                </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
            <code class="function">glMatrixMode</code> sets the current matrix mode.
            <em class="parameter"><code>mode</code></em> can assume one of four values:
        </p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_MODELVIEW</code></span></dt><dd><p>
                        Applies subsequent matrix operations to the modelview matrix stack.
                    </p></dd><dt><span class="term"><code class="constant">GL_PROJECTION</code></span></dt><dd><p>
                        Applies subsequent matrix operations to the projection matrix stack.
                    </p></dd><dt><span class="term"><code class="constant">GL_TEXTURE</code></span></dt><dd><p>
                        Applies subsequent matrix operations to the texture matrix stack.
                    </p></dd><dt><span class="term"><code class="constant">GL_COLOR</code></span></dt><dd><p>
                        Applies subsequent matrix operations to the color matrix stack.
                    </p></dd></dl></div><p>
            To find out which matrix stack is currently the target of all matrix
            operations, call <a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MATRIX_MODE</code>. The initial
            value is <code class="constant">GL_MODELVIEW</code>.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
            <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>mode</code></em> is not an accepted value.
        </p><p>
            <code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="function">glMatrixMode</code>
            is executed between the execution of <a class="citerefentry" href="glBegin"><span class="citerefentry"><span class="refentrytitle">glBegin</span></span></a>
            and the corresponding execution of <a class="citerefentry" href="glEnd"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>.
        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
            <a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MATRIX_MODE</code>
        </p></div>
        {$pipelinestall}{$examples}
        <div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
            <a class="citerefentry" href="glLoadMatrix"><span class="citerefentry"><span class="refentrytitle">glLoadMatrix</span></span></a>,
            <a class="citerefentry" href="glLoadTransposeMatrix"><span class="citerefentry"><span class="refentrytitle">glLoadTransposeMatrix</span></span></a>,
            <a class="citerefentry" href="glMultMatrix"><span class="citerefentry"><span class="refentrytitle">glMultMatrix</span></span></a>,
            <a class="citerefentry" href="glMultTransposeMatrix"><span class="citerefentry"><span class="refentrytitle">glMultTransposeMatrix</span></span></a>,
            <a class="citerefentry" href="glPopMatrix"><span class="citerefentry"><span class="refentrytitle">glPopMatrix</span></span></a>,
            <a class="citerefentry" href="glPushMatrix"><span class="citerefentry"><span class="refentrytitle">glPushMatrix</span></span></a>
        </p></div><div class="refsect1" lang="en" xml:lang="en"><div id="Copyright"><h2>Copyright</h2><p>
            Copyright © 1991-2006
            Silicon Graphics, Inc. This document is licensed under the SGI
            Free Software B License. For details, see
            <a class="ulink" href="https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/" target="_top">https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/</a>.
        </p></div></div></div>
